Application of high-speed shadowgraph technology to flow field evolvement diagnosis of laser propulsion

The application of high-speed shadowgraph technology to flow field evolvement diagnosis of laser propulsion is presented. Shadow technology and a high-speed camera are combined to investigate the flow field evolvement. The zero point of the time sequence is provided by the high-speed camera, the delay time of laser and strobo is setted in advance, and all the equipment could be synchronized. The time sequence is designed and the time interval between high-speed camera, strobo and laser is controlled. In the experiment, clear flow field evolvement pictures were obtained.